C.C. Chi, M.M.T. Loy, et al.
Applied Physics Letters
Optical second-harmonic generation has been applied to the study of clean Si(111) 2×1 and 7×7 surfaces. By an analysis of polarization dependences of the two reconstructions, the symmetry properties of the surfaces have been determined. The 2×1 to 7×7 surface phase transformation during thermal annealing has also been monitored in real time by the second-harmonic technique. © 1985 The American Physical Society.
C.C. Chi, M.M.T. Loy, et al.
Applied Physics Letters
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IRPS 2009